Submerged heater.



PATENTD NOV. 14C, 190".

G. H. GRUB.

SUBMERGED HEATER.

APPLIUATION FILED JULY 20,1905.

-Ts-SHBBT 1.

31mm tof,

@mi im e.

PATENTED NOV. 14, 1905.

C. H. GRUB.

SUBMERGED HEATER.

APPLIOATION :FILED JULY 20.1905.

2 SHEETS-SHEET 2.

31 ruw: l'oz Md y M PATENT oEEicE.

CHARLES I-I. GRUB, OF PORTAGE, WISCONSIN.

SUBMEFIGED HEATER.

Specification of Letters Patent.

Patented NOV'. 14, 1905.

Application iiled July 20,1905. Serial No, 270,565. i

To all whom it may concern:

Be it known that I, CHARLES I-I. GRUB, a citizen of the United States,residing at Portage, in the county of Columbia and State of Wisconsin,have invented new and useful Improvements in Submerged Heaters, of whichthe following is a specification.

My invention has reference to submerged heaters-. e.,'heaters designedto be used in tanks for supplying stock with water with a view ofpreventing the water from freezing; and it contemplates the provision ofa submerged heater which is at once simple and inexpensive inconstruction, economical in the use of fuel, and highly efficient inpreventing the formation of ice in a tank even when the weather isextremely cold.

The invention will be fully understood from the following descriptionand claims when taken in connection with the accompanying drawings,forming part of this specification, in which- Figure l is a longitudinalvertical section of the submerged heater constituting the present andpreferred embodiment of my invention. Fig. 2 is a transverse sectiontaken in the plane indicated by the line 2 2 of Fig. l looking-towardthe right. Fig. 3 is a horizontal section taken in the plane indicatedby the line 3 3 of Fig. l looking downwardly. Fig. 4 is a plan viewillustrating the heater in combination with a receptacle for holding hotwater and the tank for supplying stock with water, the heater beingarranged in the hotwater receptacle, which in turn is disposed in' thetank. Fig. 5 is a longitudinal vertical section taken in the planeindicated by the line 5 5 of-Fig. 4, and Fig. 6 is a transverse sectiontaken in the plane indicated by the line 6 6 of Fig. 4.

Similar letters designate corresponding parts in all of the views of thedrawings, referring to which- A is the body of my novel heater, which ispreferably oblong in shape and is made of metal suitable to the purpose.The said body is provided in its top with an opening designed for theintroduction of fuel and normally closed by a hinged andvertically-swinging door a and is also provided with a smoke-pipe Z),extending upwardly from its top adjacent to one of its ends. In the doora, adjacent to the swinging end thereof, is an opening c, controlled bya horlzontally-swinglng cover Z and designed for a purpose presently setforth.

B is a iire holder or box disposed in the lower' portion of the body A.The said fire holder or box is preferably formed by a bottom which maybe the bottom wall 'of the body A or a wall e, perforated, as shown, orimperforate, supported above the bottom of the body, the end walls ofthe body, and water-tubes C, communicating with the exterior of the bodyand designed for the circulation of water in close proximity to the lirewith a View of accelerating the heating of the water. rlhe said tubes Cconstitute the side walls of the fire holder or box and by protectingthe side walls of the body A against the high heat materially prolongthe usefulness of the heater as a whole. In the preferred embodiment ofmy invention illustrated the tubes C are arranged longitudinally and oneabove the other at opposite sides of the fire holder or box, have theirends extended through the opposite end walls of the body A, so as toconduct water through the body, and are inclined in the direction oftheir length, this latter in order to enable the water to follow itsnatural tendency of rising when heated and in that way assure themaintenance of a suiiicient circulation of the water in a tank with aview of preventing freezing' of such water. It will also be noted thatthe fire holder or box constructed in the manner shown and described isof the same length as the body, and hence admits of long sticks of woodbeing laid lengthwise in the heater, as is desirable.

D is a draft-tube which is iixed in the body A in position to registerwith and receive air from the opening c in the door a and extendsdownwardly between the pairs of tubes C and communicates at its lowerend with the space below the bottom wall e of the iire holder or box B,so as to supply to said holder or box suiiicient air to supportcomb'ustion. In virtue of the location of the said tube D-rL e., itsarrangement between the pairs of tubes C and in one end of the lireholder or box-the air passing through the said tube is highly heatedprecedent to being discharged into the lire holder or box, and in thisway combustion of the fuel in the heater is promoted.

E is a wall fixed in the body A above the tubes C and at the end of saidbody remote from the draft-tube D. The said wall E is provided with anopening f for the upward passage of smoke and other products ofcombustion and is preferably retained in position through the medium ofbail shaped hangers F, connected to and depending from the top wall ofthe body A. The said bailshaped hangers and the connection of the sameto the wall E and the top of the body A are in no way liable to beaffected by the heat, and hence it follows that the said hangerscontribute materially to the durability of the heater as a whole.

Gr is a vertically-swinging' door hingedto the wall E and designed whenin its normal position to prevent smoke and products of combustion frompassing above the wall E except by way of the openingf therein. H is acable, preferably a chain, connecting the door Gr and the door a, sothat when the latter door is opened for the introduction of fuel thedoor G will also be opened, and M is an imperforate deflector-wall fixedin the body A above the wall E. By virtue of the arrangement justdescribed it will be observed that the heated gases and other productsof combustion must in passing from the fire holder or box B to thesmoke-pipe take through the opening f in the wall E and around thedeflector-wall M. In other words, the heated gases and other products ofcombustion after passing through the opening f are conductedhorizontally first toward the left and then toward the right in theupper portion-of the body A, and from this it follows that practicallyall of the heat value of the said gases and other products of combustionwill be utilized in heating the upper portion of the body A and thewater surrounding the same before the gases and other products ofcombustion pass out of the heater through the smoke-pipe b.

My novel submerged heater is designed to be used in the manner common tosubmerged heaters-that is to say, it is adapted to be placed in a tankof water with the top of its body above the surface of the water. Iprefer, however, to employ the said heater in combination with thehot-water receptacle P andthe tank R for supplying stock with water, asshown in Figs. 4 to 6.l

The receptacle P, which is preferably of sheet metal, is arranged in thetank R adjacent to one end of the latter and is of such a size that theheater occupies about one-half of its width and extends from a pointadjacent to one of its end walls to a point adjacent to its opposite endwall, as shown. Said receptacle P is provided with a hinged cover S forcovering its portion at one side of the heater, and it is also providedwith a cock T, extending through one of its end walls and designed whenopen to connect its lower portion and the interior of the tank R, and acock U, extending through its opposite end wall and designed'when opento connect its upper portion and the interior of the tank.

By reference to Figs. 4 to 6 it will be observed that with the heater inoperation water will circulate from the interior of the tank through thecock T into the receptacle P. lVhile in the said receptacle P vthe waterwill pass through the tubes C of the heater and by reason of suchpassage and its confinement in proximity to the heater will be quicklyheated. From the receptacle P the water will pass through the cock Uback into the interior of the tank R.

By reason of the water circulating from the interior of the tank Rthrough the receptacle P, the heater and the said receptacle P, and backinto the interior of the tank it will be observed that freezing of thewater in the tank will be prevented even when the ternperature is verylow. It will also be observed that the water in the receptacle P is atall times warm and may be readily dipped therefrom when the cover S israised. It will further be observed that by closing both cocks T and Uthe water thereby confined in the receptacle P may be quickly heated toadapt it for making swill in real cold weather.

It will be gathered from the foregoing that while the receptacle Pmaterially increases the efficiency of the heater it adds but little tothe cost of installing the same.

Having described my invention, what claim, and desire to secure byLetters' Patent,

1. A submerged heater comprising a hollow metallic body having anopening for the introduction of fuel and a door controlling the saidopening, a smoke-pipe leading from the Lipper portion of the body at apoint adjacent to one end thereof, a fire holder or box disposed in thelower portion of the body, a draft-tube arranged at the opposite end ofthe body, with reference to the smoke-pipe, a wall fixed in the bodybelow the smokepipe and above the fire holder or box and having anopening for the passage of products of combustion, a vertically-swingingdoor hinged to said wall and connected with the door of the body,'andadeflector-wall arranged in the body intermediate the smoke-pipe and thefirst-mentioned wall.

2. A submerged heater comprising a hollow metallic body having anyopening for the introduction of fuel and a door controlling the saidopening, a smoke-pipe leading from the upper portion of the body at apoint adjacent to one end thereof, a fire holder or box disposed in thelower portion of the body, a draft-tube arranged at the opposite end ofthe body, with reference to the smoke-pipe, a wall arranged in the bodybelow the smokepipe and above the lire holder or box and having anopening for the upward passage of products of combustion, bail-shapedhangers IIO ixedly connecting the said Well with the top In testimonywhereof I have hereunto set Wall of the body, a vertically-swinging doormy hand in presence of two subscribing Withinged to said wail, a, cableconnecting said nesses.

door and the door of the body, and a defleotor- CHARLES H. GRUB. 5 wallarranged in the body at a point inter- Witnesses:

mediate the smoke-pipe and the iirst-men EVAN EVANS,

tioned well. W. H. THOMAS.

